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MSU has a network of traps monitoring for this new invasive pest in Michigan fruit and vegetable fields and a guide for what growers can do.

Spotted wing Drosophila was detected last fall for the first
time in the Midwest. This invasive insect is a potential
pest of soft-skinned fruit, and there is a coordinated effort to ensure
Michigan growers are prepared for this new arrival during the 2011 growing
season. Last year, the first flies were not detected until late September
despite widespread monitoring, and well after harvest of most susceptible fruit
crops.

This season, there is again a network of traps spread across
the fruit and vegetable fields of Michigan, and so far this season, there have
been no captures of this insect. To ensure that growers know how to trap,
identify and control this pest, members of the spotted wing Drosophila Response
Team have prepared a document titled SWD
Management Recommendations for Michigan Blueberry Growers. This is focused
on blueberry, but much of the information will be relevant to other crops. The
insecticide registrations and restrictions will vary by crop, however. The
document has been posted at MSU’s Spotted Wing Drosophila website at http://www.ipm.msu.edu/swd.htm